[Editor’s note: We’re not writing about this topic to invite a debate on Barack Obama’s presidency or the politics of Crimea. This article is about hockey. Kind of. It’s also about Miley Cyrus.]

In March, Vladimir Putin sent troops into the Crimea. His stated motive was to protect the mostly Russian population there from unrest. A few days later, the Crimean parliament declared independence from Ukraine and asked to join the Russian Federation. Putin then claimed Crimea as part of Russia on moral and material grounds, citing the principle of self-determination and Crimea’s strategic importance for Russia or some ish like that.

Lots of world leaders were pretty pissed about this, judging by the non-binding UN resolution (100 of 193 in favor) that declared Crimea’s Moscow-backed referendum invalid a few days later. Then the United States decided to show just how pissed they were by sanctioning Vladimir Putin and all his boyz.

Those of us who watch the news every night and consider ourselves informed knew all of this already. What we didn’t know is who exactly got sanctioned, why they got sanctioned, and why those sanctions matter to us. Thanks to Jennifer M. Smith (whom we had the pleasure of meeting at RMNB Party 6) and her co-workers at the Stewart & Stewart law firm, we have learned that some of the people sanctioned are deeply involved in the Russian hockey league, the KHL. Russian billionaire Arkady Rotenberg, president of Alex Ovechkin’s former KHL team Dynamo Moscow, has been sanctioned by the United States for being Putin’s former judo partner and a member of his inner circle.

You can’t make this stuff up.

Gennady Timchenko, chairman of the board for the Kontinental Hockey League (KHL) and president of Ilya Kovalchuk’s SKA St. Petersburg, has also been sanctioned, as well as Arkady Rotenberg’s brother, Boris, president of Dynamo’s soccer team. Timchenko and the Rotenberg brothers also own a joint stake in the Finnish hockey team Jokerit, which is slated to join the KHL in the 2014-15 season.

The sanctions prohibit anyone from the United States from engaging in any transactions with people on that list. The economic sanctions also block any transactions with their property, including the entities they own.

The U.S. sanctions freeze assets of Timchenko and the Rotenbergs, block their property and property interests, and ban them from travelling to the United States. Under U.S. law, the sanctions also automatically block the property and property interests of any entity in which a blocked person such as Timchenko and the Rotenbergs owns, directly or indirectly, a 50% or more interest.

This means that any person in the United States and all U.S. citizens, permanent residents, and entities (including foreign branches) are prohibited from engaging in any transactions with Timchenko, the Rotenbergs, and any organization in which they have a 50% or more ownership interest.

Canada has also blocked Timchenko and his property, but not the Rotenbergs.

The question becomes: do any of the three billionaires named in the sanctions own 50% or more of their KHL teams?

Fedor did some research. The majority of Jokerit’s stock is owned by Finnish businessman Hjallis Harkimo. At SKA, though Timchenko is acting president, the organization is majority owned by gas giant Gazprom, which is in possession of the Russian Federation. The only club that seems to be in danger of doing business with the United States or its people is Dynamo Moscow. There’s not much information on who or which entities own the club legally, but it’s most likely Arkady Rotenberg who owns over the majority of the team’s stock.

Washington Capitals captain Alex Ovechkin was named advisor to Dynamo Moscow in 2010. It was a paid position.

Regardless of a hockey player’s nationality, any permanent resident of the U.S. (i.e. anyone with a “green card”) is treated as a “U.S. person” who must comply with U.S. economic sanctions. That would seem to indicate that Ovechkin must be careful in his dealings with Dynamo now and until the sanctions are lifted.

The U.S. Government takes violations of the sanctions laws very seriously — a single violation can result in up to 20 years in prison, criminal fines of up to $1 million, and civil penalties of up to $250,000 or twice the amount of the relevant transaction.

According to Reuters, professional twerker/part-time terrible musical artist Miley Cyrus and Justin Timberlake have been the first Americans to test the sanctions. They’ve been given the green light to perform concerts in venues owned by sanctioned people this summer.

American pop stars Miley Cyrus and Justin Timberlake can go ahead with shows in Finland despite U.S. sanctions against the Helsinki venue’s Russian owners, the concerts’ promoter said on Monday.

The concerts were at risk last week as the Hartwall Arena venue is owned by Gennady Timchenko and Boris and Arkady Rotenberg, all of whom feature in a list of visa bans and asset freezes imposed by the United States following Russia’s annexation of the Crimean peninsula from Ukraine.

The concert promoter said U.S. officials had indicated at the weekend that the sanctions would not prevent the concerts going ahead.

“The sanctions will not have an impact on Hartwall Arena nor our business there,” Nina Castren, the chief executive of Live Nation Finland, told Reuters.

This is really complicated.

Any North American player who wishes to play in the KHL next season should get educated on the sanctions and whom they affect. And they should be careful. Considering the rulings for Miley Cyrus and Justin Timberlake, these sanctions seem mostly toothless when involving entertainers. And while we have no idea what Alex Ovechkin’s role with Dynamo is right now, he should be careful too.